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H. A. FooTHoRAP VCROSS 4IOO'IINC: REGISTER Filed May 5 `1924 51sheets-Sheet 1 IFT f8 Gtfoz 119.14

Marchle 1926. 6 1,576,961

, HLA. FOOTHCRAP y CROSS FOOTINGREGISTER Filed May 3, 1924 5 Sheets-SheetA 2 wnulginnmlum l y |||||||||Um 66% I alud-61u44 March 16r 1926. 1,576,961

H. A. FoorHoRAP CROSS FOOTING REGISTER Filed May 5, 19214 s sheets-sheer H. A. FooTHo'RAP GROSS FooT 1NG REGISTER Filed May :3, 1924 sheets-Sheet 4 I l atbozneq I H. A. FOOTHORAP cRoss FooTING REGISTER Filed May s, 1924 5 Sheets-Sheet 5 Patterned Mar. 1e, 1926.

vUNITED STATE-s PATENTOFFICE. l

' HARRY A. FOOTHORAKP, OF HARRISBURG, PENNSYLVANIA, ASSIGNOR TO ELLIOT'I- FISHER COMPANY, A CORPORATION-OF DELAWARE.

CIR'OSS-FOO'JIING REGISTER.

Application 1aed 1s/tay s,

State of Pennsylvania, has'invented cerfY tain new and useful Improvements lin Cross Footing Registers, of which the following is a speciicatiomreference being had thereintol the accompanying drawing.

'lhis invention relates to computing mechanisms, particularly of the type knownras cross footing registers for writing` adding 4 machines;

The object of the invention is to provide a cross footing register with a toggle locking,

- :two way carryingor transfer mechanism of ject and register. Fig. 6 4.5

parts.

the Vgeneral:chaargdcribed in myfce-e pending application No. 710802, 1 andate' asso'V ciate therewith a resetting mechanism similar in principle to theresetting mechanism of said-application, but varied to conform to the requirements of across footing register ofthe type disclosed in my Patent No. 1,455,196. To the accomplishment of this general ob-.

bodiment of the invention resides in the construction and arrangement of parts hereinafter fully described and illustrated in the accompanying drawings.

In said drawings:

Fig. 1 is a vertical, section through a cross footing register constructed -in accordance w'vth'nmgrinvention.

Fig. 2 is a side elevation of the register showing elementsof the resetting mechani sm 4 mounted on the exterior thereof.

Fig. 3 is a detail-section of the structure shown in Fig.'2.

v Fig. 4 is a rear View of the register with the casing in-section. Fig. .5 is a verticall section through the is a side elevation1 of one of. the carrying devices and immediately associated Fig'. 7 is a sectional elevation of the subjectmatter ofFig. 6.y

Fig. 8 is a detail perspective view of the two bearing blocks. u

Figs. 9 and' 10 are detail sectional views showing the carrying mechanism at dierent stages of the carrying operation, the normal 'posltions of certain parts of the resettlng mechanism being indicated in vdotted lines.

others subordinate thereto, one em- 1924.- Serial No. 710,8()3.

Figs. 11 and 12 are similar of the carrying `mechamsm during and 'after resetting, w1th the-elements of the carrying mechanism 1n different posltions assumed by them when operated to reset the carrying mechanism.

The particular machine, an embodiment of -which is Aunder consideration, is the Elliott-Fisher bookkeeping machine of commerce. This machine is of the class known as flat platen typewriters equipped with addin'g mechanism consisting of column regis-l ters and .a cross footing register. The column registers are associated with different columns of the work sheet and the cross footing register is common to any or all ofthe columns, provision being made for its op eration, for either addition orisubtraction, simultaneous with the operation of different column registers.

The general assemblage is-shown. in Fig. 1 wherein 1 indicates the traveling carriage on which the keys and printing mechanism are mounted, 2, the cross footing register mounted 011 and movable with the carriage,

andai, one 0f the column registers mounted on a relatively fixed register bar in rear of the carriage. l

The cross footer register and the column register are operated simultaneouslyv from keys (not shown) which, through intermediate mechanism, operatesl a' master Wheel `2 are a series of number wheels 6 occupying different denominational positions and operated by a master wheel 7 movable longitudinally 0f a squared shaft 8 geared to thelv shaft 4 by variable gearing 9. .This gearing 9 serves to transmit motion from the shaft 4 to the master-wheel shaft 8 of the cross footer in either of two directions for the purpose of operating the number wheels 6 for addition or subtraction through the master wheel 7.

` Geared to the denominational members'or number wheels 6 are a' series-ofindicatii'igv y wheels 10, the digits on the peripheries of which are exhibited Aat a sight opening 11'" mounted a series of. carrying or. transfer devices, each of which includes a carrying head 12 having a lixed axison a shaft 13, and a link 14 pivoted-to theflower end of the head and to an operating lever 15 urged in one direction by a. suitable'motor, as for instance, a spring 16. The relation of the parts is such that normally the pivotally connected members 12 and 14 of each carry-- ing device are disposed in alignment with the axis 13 which acts as a dead center opposing the powerexerted by the spring 1.6. In this normal relation of the parts the carrying devices constitute toggle locks which nullify the Amotor springs 16'so that each carrying device normally occupies a ce-ntralposition. As soon, however, as a carrying device is broken or flexed in either direction from this central position, the dead center relation of the parts is destroyed 'and the motor spring becomes effective to swing the head 12 and thereby effect the carrying y operation.-

-This initial flexing of thev carrying device is accomplished by the.` adjacent number wheel 6,-one tooth of which is widened to.k form a carrying lug 17 which engages a trip 18 extended upwardly lfrom. the vhead 112. On the head, and mounted 'at opposite sides of the axis thereof,are a pair of `carrying ingersv19 pivoted at 20 and having associ'- ated therewith, locking dogs 21. Each combined finger and locking dog yieldsjin one ldirection againstthe resistance of a spring 22 but by `reasonofengagement with the si e of the head 12 is unyielding relative to t-he head in the opposite-direction. As described in myapplication aforesaid,

i i this construction and arrangement of the carrying devices resultsfwhen' the number` wheel moves from 0 to 9l in addition or from 9 to 0 1n subtraction, 1n the engagement of the lug 17 with the trip 18 and in the exing or breaking or trippingof the carrying device in one direction orthe other. The motor spring 16 becomes effective to complete the carrying operation through the Aengagement 'of one of the dogs 19 with the next higher number wheel las soon as the alignment of the elements 12 and 14 .is disy turbed. The members 14 are extended below the operating. levers 15 and are provided at their lower ends with rollers 23 which engage arcuate depressions 24 in detent levers 25 urged in the holding direction by springs 26 attached to a hook bar 27 and at their lower ends to the extremities of the detents 25 whichare fulcrumed ina bearing block" 28 and are guided both by said block and a second bearing block 29. y

I The describedmeclianism is substantially l of detail. The principal variation occurs in lmechanism i for the Acarrying the resetting devices. .The resetting of the carrying devices and 4the restoration of the motor springs to normal tension is accomplished byresetting mechanism which` includes two resetting yokes v30, the transverse resetting bars 31 of which extend across'the entire series of carrying devices at opposite sides thereof. y

Theyokes 30 are swung fromtlie shaft-13 and the walls of t-he casing are formed withv arcuate slots 32 accomodating the movement of the bars 31, vand through which said bars i' A extend to the exterior ofthe casing"(see Fig. 2). Fulcrumed on the exterior of the cross footer casing are two oppositelydisposed bell cranks 33 and 34 havingbifurcated ends f 35 engagingthe lends of the resetting bars 31. The opposite ends ofthe bell cranks footer at 38 is a resetting lever 39 terminating at one end in a -resetting key 40, and at its opposite end in a hook 41 for theattachment of a spring 42 secured at its opposite end to the casing, as shown at 43. A link 44 is dropped down from the lever 39 and is connected to the bell crank 34 as shown.v 45 is a guide forthe lever 39. i 4

It will now beseen that when the carrying mechanism has been 'operated and occupies the position shown in Fig. 10 oi; a similar `position at the-other side of the center, it will be retracted to its normal central position by the simultaneous swinging of the resetting yokes 30, the setting bars of which Ymove toward the center line of the carrying When the carrylng devices have been re-l set, the release of the key 40 will retract the resetting mechanism and as the motor springs 16 have been restored to normal ten- 44, will cause a 9,5 overlap, as shown in Fig. 2, one being' bifurf cated or slotted, as indicated at 36, to engage yokes is effected y scribed,

sion and the members 14 again engage With the detents 25, the mechanism will be in condition for areoperation.

' From the foregoing, the construction and operation of the illustrated embodiment of the invention Will be clearly understood, but I reserve the right to effect such modifications thereof as may fall within the scope of the claims.

lVhat I claim is:

1. In a mechanism of the character described, the combination with carrying devices, of bearing blocks located at opposite sides thereof, operating levers and detents fulcrumed in their respective bearing blocks and each guided by both blocks, and springs connected to said levers and detents.

2.1m a mechanism of the character described, the combination with a carrying mechanism and bearing blocks located at opposite sides thereof, 0f operating levers fulcrumed in one of the bearing blocks and guided by the other, detent leversfulerumed in the last named block and guided by the block first named, and springs connected to the free ends of the levers and detents and located outside of the bearing blocks.-

3. In a meehanism'of the character dethe combination with carrying mechanism movable in either of tWo directions from a central position, resetting yokes for said carrying mechanism, bell cranks directly connected toA each other and to the yokes, and a resetting lever for operating the bell cranks.

4. In a mechanism ofthe character described, the combination with carrying devices and resetting yokes therefor, of connected hell cranks for operating the yokes, a key connected to the bell cranks to operate the same, and means for retracting the key.

5. In a mechanism of the character described, the combination with carrying mechanism and a pair of resetting yokes ztherefor, of oppositely disposed bell cranks directly connected to each other and to the 'yokes, a resetting lever, a link connecting the resetting lever to one of the bell cranks, and means for retracting the resetting lever.-

6. In a mechanism of the character described, the combination with a casing, of carrying mechanism Within the casing, a pair of resetting yokes also within the casing but extended outside thereof, a pair of bell cranks mounted outside of the casing and engaging the yokes, means connecting the bell cranks to compel their movement in unison but in opposite directions, and a resetting key for operating the bell cranks.

.7. In a mechanism of the character described,l the combination with a casing having arcuate slots in a Wall thereof, of carrying mechanism within the casing, resetting yokes cooperating with the carrying mechanism and including resetting bars extended through the slots in the casing, connected levers mounted on the exterior of the casing and engaging the resetting bars, and a resetting key for operating said levers.

8. In a mechanism of the character described, the combination with a casing having arcuateslots -in one wall thereof, r carrying mechanism within the casing, resetting yokes cooperating with the carrying mechanism and including resetting bars eX- tended through the arcuate slots, bell cranks fulcrumed on the outside of the casing and connected to each other and to the resetting bars, a resetting lever mounted on the casing and connected to one of the bell cranks, and

means for retracting the lever.

9. In a mechanism of the characterdescribed, the combination with a casing having arcuate s ots in one wall thereof, a carrying mechanism within the casing, resetting yokes cooperating with the carrying mechanism and including resetting bars extended through the arcuate slots, bell cranks fulcrumed on the outside of the casing and connected to each other and to the resetting bars, a resetting lever mounted on the casing, a link connecting the resetting level' with one of the bell cranks, and a retracting spring for the resetting lever.

10. In a mechanism of the character described, the combination with a casing having arcuate slots in one wall thereof, a carrying mechanism within the casing, re-

setting yokes cooperating with the carrying mechanism and including resetting bars extended through the arcuate slots, bell cranks fulcrumed on the outside of the casing and connected to each other and to the resetting bars, a resetting lever mounted on the casing, a link connecting the resetting lever with one of the bell cranks, a retracting spring for the resetting lever, and a resetting key for operating the lever.

11. The combination with spaced bearing and guide blocks of a set of operating levers and a set of detent levers, each set of levers being mounted in one block andguided by the other block, denominational members, and carrying mechanism therefor cooperating intermediate of the'block with both sets of levers` In testimony whereof I hereunto affix my signature.' 

